Hax is like a ring modulator, I guess. It creates a wave a predetermined musical distance from your input signal. Oh, but that wasn’t nasty enough, so I added a power starve knob, so it’ll glitch out like a maniac and get kind of fuzzy and generally disagreeable.HAX has a wide oscillator range, from put-put-put robot farts to demon squeels. Hi/Low switch allows quick switches between tonez.ALSO HAX has an expression pedal input! all right! Stick your moog expression pedal in there to control the tune knob with your big fat foot. Other pedals will probably work too, but they should have a stereo type tip.